Display device

Abstract

To provide a display device capable of more reliably preventing a leakage current between adjacent pixels, the display device includes a plurality of first electrodes, an organic insulating layer disposed in a non-light emitting area and covering an end portion of the first electrode, a first light emitting layer disposed on one first electrode and a second light emitting layer, a second electrode, a carrier transport layer, a carrier injection layer, and a first carrier blocking layer. The carrier injection layer includes an overlapping area that overlaps with an end portion of the organic insulating layer. The carrier transport layer overlaps with the carrier injection layer in the overlapping area. The first carrier blocking layer is disposed in the non-light emitting area, and an end portion of the first carrier blocking layer is disposed between the carrier transport layer and the carrier injection layer in the overlapping area.

What is claimed is: 
     
         1 . A display device comprising:
 a plurality of first electrodes;   an organic insulating layer disposed in a non-light emitting area and covering an end portion of the first electrode, the non-light emitting area being between one first electrode and another first electrode among the plurality of first electrodes;   a first light emitting layer disposed on one first electrode of the plurality of first electrodes and a second light emitting layer disposed on another first electrode of the plurality of first electrodes;   a second electrode on the first light emitting layer and the second light emitting layer;   a carrier transport layer between the first electrode and the second electrode;   a carrier injection layer between the first electrode and the second electrode; and   a first carrier blocking layer disposed on the carrier injection layer in an area in which the organic insulating layer is disposed, wherein   the carrier injection layer includes an overlapping area that overlaps with an end portion of the organic insulating layer,   the carrier transport layer overlaps with the carrier injection layer in the overlapping area, and   the first carrier blocking layer is disposed in the non-light emitting area, and an end portion of the first carrier blocking layer is disposed between the carrier transport layer and the carrier injection layer in the overlapping area.   
     
     
         2 . The display device according to  claim 1 , wherein
 the non-light emitting area includes a blocking area, and   the blocking area does not include the carrier injection layer.   
     
     
         3 . The display device according to  claim 1 , wherein
 the carrier injection layer includes a blocking area in the non-light emitting area, and   the carrier injection layer is thinner in the blocking area than in other areas.   
     
     
         4 . The display device according to  claim 1 , wherein
 the carrier injection layer includes a blocking area in the non-light emitting area, and   the carrier injection layer has lower conductivity in the blocking area than in other areas.   
     
     
         5 . The display device according to  claim 2 , wherein
 the blocking area and the first carrier blocking layer overlap with each other in a plan view.   
     
     
         6 . The display device according to  claim 2 , wherein
 the first carrier blocking layer is formed in a striped shape in the non-light emitting area.   
     
     
         7 . The display device according to  claim 2 , wherein
 the first carrier blocking layer is formed in a grid shape in the non-light emitting area.   
     
     
         8 . The display device according to  claim 2 , wherein
 the first carrier blocking layer is formed in an island shape in the non-light emitting area.   
     
     
         9 . The display device according to  claim 2 , wherein
 the first carrier blocking layer covers the blocking area, and   the end portion of the first carrier blocking layer on the first light emitting layer side is located closer to a light emitting area than the end portion of the blocking area on the first light emitting layer side.   
     
     
         10 . The display device according to  claim 1 , further comprising a second carrier blocking layer between the first and second light emitting layers and the carrier transport layer.